Highest TB incidence (per 100,000)

945.0

Kiribati

Lowest TB incidence (per 100,000)

0.3

Palestine

The highest incidence is seen in southern and central african countries. Between 2000 and 2024, there is a general trend of decreasing TB incidence globally.

The following graph shows the ten countries with the highst TB incidence rates during 2024. Kiribati had the highest incidence rate at 945 new cases per 100,000 people.

Highest undernourishment prevalence (%)

50.4

Haiti

Lowest undernourishment prevalence (%)

2.5

Kuwait

The highest undernourishment prevalence is seen mainly in sub-Saharan Africa and South Asia. While the prevalence of undernourishment has decreased between 20001 and 2022 in many countries, some coutnries such as the Democratic Republic of Congo and Zimbabwe have unfortunately experienced an increased prevalence during recent years.

The following graph shows the ten countries with the highst undernourishemnt prevalence during 2022. Haiti had the highest prevalence at 50.4% of the population experiencing undernourishment.

The following scatter plot shows the relationship between TB incidence and undernourishment over time globally. From 2001 to 2022, there is a general trend of decreasing TB incidence and undernourishment prevalence. There is a slight relationship between TB incidence and undernourishment. For example, Djibouti had the highest TB incdence rate in 2001 (2650), and amongst the highest undernourshment prevalence (41.9%). As the undernourishment prevalence dropped to 12.9% the TB incidence also dropped to 462. However, not all countries follow these trends. Kiribati and the Philippines which have the highest TB incidence rates in recent years have very low undernourishment prevalence.

This figure shows the undernourishment prevalence and TB incidence in 2022. Again there is a slight relationship seen between the two variables, which is more visible when looking at continents individually. The relationship between undernourishment and TB incidence is particularly strong in the African continent.

The data shows a general decline in TB incidence and undernourishment prevalence over time. However, the data also highlighted specific countries that have experienced an uptick in both TB incidence and undernourishment prevalence in more recent years. While there was a slight trend between TB incidence rates and undernourishment prevalence, this was not true for all countries globally. One needs to factor the many other factors that can influence TB incidence rates when interpreting this data. For example a general increase in quality of life is associated with reductions in TB incidence, which can also be associated with decreasing undernourishment prevalence. Some countries may also be under reporting TB incidence rates, such as Palestine which has experienced a breakdown in its healthcare infrastructure due to ongoing conflict. While the data shows that it had the lowest incidence of TB in 2024, the reported data may not be truly reflective of the number of new TB cases in the country.

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